Device for spinning and twisting yarn.



No. 890,618. PATENTEDJUNE 16, 1908.

v D. DESPRADELLE.

DEVICE FOR SPINNING AND TWISTING YARN.

APPLICATION FILED MAY 19, 1906.

DESIRE DESPRADELLE, or BOSTON, MASSACHUSETTS.

nnvron FOR srmnme AND rwrsrme YARN.

Specification'of Letters Patent.

Application filed May 19, 1906. Serial No. 317,691.

To all 'whom itihay concern:

Be it known that I, Di'isrnn DEsPRADELLE,

a citizen of France, and resident of Boston, Massachusetts, county of Suffolk, have invented certain new and useful-Improvements in Devices for S inning and Twisting Yarn,

of which the f owing is a s ecificatlon.

This invention relates toevices for spinning and twisting yarn and more particularly has reference to means'for controlling the rotary traveler ringsuch as are used in ringspinning frames or other devices for twisting or spinning yarn.

The invention comprises a controller containing a series of gravity-operated rolling weights arranged to lie normally in contact with the ring when the ring is at rest. but which are supported to roll away from the ring under the influence of the centrifugal repulsion of the ring during its rotation at operative speed. I

. In the' accompanying drawings are illustrated two of the various forms under which the invention may be embodied.

Figure 1 is a plan view of the device. Fig. 2 is a vertical cross section thereof showing its position in the ring rail. Fig. 3 is a deta showing one of the ball weights. Fig. 4 is a detail in vertical crosssection showmg ifiedthe application of the form of ring. p

In the practice of my inventionaccordim invention to a mo to the specific form illustrated in Figs. 1 and 20f the drawings, I provide a holder or supporting device a which as illustrated comrises an annulus formed to fit into the holes in the, rin rail of a ring spinnin frame. This annu us'isrovided at suitab e intervals with scoopike pockets -'or recesses I) each constructed and arranged to receive a rolling weight which in this case is shown as a ball 0 which has approximately the same diameter as the internal width of the pocket so as to ractically fill the same from side to side. T e floor or bottom of the pocket. is inclined so as to give the ball a tendency to roll toward the center of the holder or of the ring supported by it. The traveler ring (1 rests loosely on top of the holder (1, its outer face being close to but out of contact with the ed es or walls of the surrounding ockets.

As ilustrated in the drawings, w on the ring is at rest the rolling weights or balls c rest with a li ht pressure against theouter eriphery of t e ring. .Upon starting up the anie the revolution of the traveler is inrgyratory movement liftin from its seat on the holder. By the time t e normal speed of rotation has been reached the centrifugal force exerted by the rapidly rotating zone or film of air immediately in contact with the raceway or outer surface of the ring, is sufficient to push the ball 0 slightly out of contact with the ring itself, while excessive repulsion of the balls is prevented by the centripetal tendency of the balls due to their gravity and inclined sup ort. To give increased resistance the inc ination of the supporting surfaces upon which the balls rest may be more abrupt as it extends outwardly. In both forms I have shown this inclination as being in the form of a curve approaching more nearly to the vertical plane as it recedes from theinneredge of the pocket next to the ring. The lower flange of the ring acts as a means for preventin the ring from lifting out of its pos tion within the plane of the balls, while the accidental displacement of the balls out of the pockets ma be prevented either by suitably shaping t e pocket or by providing it with a detent overhanging its top. I have shown for this purpose a spring metal tongue e which may be readily pushed back to ermit the removal or insertion of the ball w en desired.

As shownv 'in Fig. 3 the rolling weights which act as-the controller of the ring may be corrugated or roughened in any suitable manner to increase the repellent action of the air particles thrown off from the ring during its rapid rotation.

A modified formi-illustrat'ed 4 em-,

I'atented June 16, 1908.

- parted to the ring which quickly acquires a I bodies the same princi he as the orm already described but in t is case the raceway of the ring is curved or dished so that in a state of rest the ball lies partly upon the rin so that the ring aflords'sup ort for the bal from beneath as well asin a ateral plane.

By the construction and arrangement described the minimum' area of-contact between the rin audits controlling weight is obtained, whi e the-action of the weight is purely automatic, the extent of its repulsion epending upon the speed of the ring and the resistance to such repulsion increasing in any desired. pro ortion'as the ball recedes from contact-wit the ring, since the's orting surface in the pocket may be curved clined at any desired angleto give this effect.

Without attem ting to set forth the various changes in orm,-construction and arrangement that may be made in the practice of my invention, what I claim is:

1. A device for spinning yarn the combination with a rotatable traveler rin of a holder or base provided with a series o pockets, a series of rolling weights adapted to lie in said pockets and having anormal tendency to roll toward and into contact with the ring to afford a yielding lateral resistance to the ring, substantially as described.

2. Adevice for spinning yarn the combination with a rotatable ring of a base provided with a series of scoop-like ockets, a series of balls formed to practical y fill said pockets from side-to side, a traveler ring positioned inside the circle of said balls whereby the repulsion of the air particles from the.

ring when in rotatien acts to roll the balls outwardly from the ring, substantially as described.

3. A controlling device for a rotary traveler ring, embracing in its construction a base provided with a series of pockets or recesses whose bottoms are inclined inwardly and downwardly, a series of roughened surfaced rolling weights mounted therein so as to roll against the ring when at rest and tobe reelled therefrom when the ring is in rotation, substantially as described. I

4. A controlling device for a rotary traveler ring, embracing a base member adapted to be secured to the ring rail and provided ring under the action of gravity and outwardly away from the ring under the centrifugal repulsion caused by the ring when rotating, substantially as described. v

5. A device of the class described embracing an annular base member provided with radial pockets about its periphery, balls disposed in said recesses an freeito roll toward and away from the center, means for preventing the accidental dis lacement of the balls from said recesses, su stantially as described.

6. A device of the 'class described embracing in its construction, a stationary base member adapted to be secured to the ring rail and provided with a series of pockets about its eriphery, arotatable ring resting upon said base concentrically with said pockets, and a series ofirollin weights disposedin said pockets and normally resting in contact with the raceway betweenthe flanges of the ring, substantiallyas described.

In witness whereof, I'- have hereunto set my hand, this 11th day of May, 1906.

ESIRE DESPRADELLE. In the presence of GEO. N. GODDARD, KATHARINE A. DUGAN. 

